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Thursday, January 22, 2009

Skin model

We finished our first model, skin, from The Body Book. I ripped the pages out of the binder, put each in sheet protectors, and scanned what I need, and printed it out onto heavy paper. The subcutaneous (bottom) sheet is actually card stock while the other two are 28# paper. It is all held together with tape and was easy to assemble.

Each layer flips up on tape hinges. The boys enjoyed putting this together; we refer to it while reading through Blood and Guts.

We also demonstration the effectiveness of evaporation by rubbing a little isopropyl alcohol, which evaporated quickly, on one hand and water on the other. The alcohol feels much cooler.

One experiment not in the book that I want to try with the boys demonstrates that cold and wet are both sensed by the same sensors. Blindfold your subject and put something cold, but dry, on them and ask if they feel something wet...

Visitors

On Science, Learning, and Faith

"Books dealing with science as with history, say, should be of a literary character, and we should probably be more scientific as a people if we scrapped all the text-books which swell publishers' lists and nearly all the chalk expended so freely on our blackboards."Charlotte MasonA Philosophy of Education

"Some teachers may give a live lesson from a stuffed specimen, and other teachers may stuff their pupils with facts about a live specimen; of the two, the former is preferable."Anna Botsford ComstockHandbook of Nature Study

“Science can purify religion from error and superstition. Religion can purify science from idolatry and false absolutes.”

Pope John Paul II

"Beautiful is what we see.More beautiful is what we understand.Most beautiful is what we do not comprehend."Bl. Nicolas StenoFounder of modern geology

"Go my Sons, burn your books and buy stout shoes, climb the mountains, search the valleys, the deserts, the sea shores, and the deep recesses of the earth...Observe and experiment without ceasing, for in this way and no other will you arrive at a knowledge of the true nature of things." Petrus Severinus16th century Danish alchemist

"All this propaganda for literacy of one sort or another comes from people who believe that everyone should share their particular views of what the most important knowledge is and what conclusions should be drawn from it; in other words, they want others to be indoctrinated."Henry H. BauerScientific Literacy and the Myth of the Scientific Method

"Furthermore, and contrary to popular belief, the Church never supported the idea that the earth is flat, never banned human dissection, never banned the zero, and certainly never burnt anyone at the stake for scientific ideas."James HannamThe Genesis of Science